Inductively Coupled Circuits with Spin Wave Bus for Information Processing

Khitun, Alexander; Bao, Ming; Lee, J. Y.; Wang, Kang L.; Lee, Dok Won; Wang, Shan X.; Roshchin, Igor V.

doi:10.1166/jno.2008.003

Cited by 33 publications

(19 citation statements)

References 9 publications

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“…[1][2][3] Recently there has been a renewal of this interest because it has become possible to generate large amplitude precessional motion in metals through a variety of techniques. [4][5][6][7][8][9][10][11] There have been a number of experiments 8,12,13 which have shown an interesting nonlinear mixing of two signals in magnetic materials. These experiments were done in ultra-small geometries where the microwave magnetic field could be varied over several orders of magnitude, from less than one Oe up to several hundred Oe.…”

Section: Introductionmentioning

confidence: 99%

Two-wave mixing in nonlinear magnetization dynamics: A perturbation expansion of the Landau-Lifshitz-Gilbert equation

Marsh

Camley

2012

Phys. Rev. B

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Recent experiments have shown that two electromagnetic waves can be mixed together by a nonlinear process in magnetic materials and can produce a wide variety of output waves, each with a different frequency. A perturbation expansion of the Landau-Lifschitz-Gilbert equation is presented which provides qualitative and quantitative understanding of this process. The results of this expansion are compared to both experiment and direct numerical solutions.2

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Section: Introductionmentioning

confidence: 99%

Two-wave mixing in nonlinear magnetization dynamics: A perturbation expansion of the Landau-Lifshitz-Gilbert equation

Marsh

Camley

2012

Phys. Rev. B

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“…Since the fi rst proposal on spin wave logic [31], there have been a number of works, where the idea of using spin waves in logic circuitry has been evolved in different ways [14,53,54,59]. The variety of possible spin wave based devices can be classifi ed within several groups including single-frequency and multi-frequency, Boolean and non-Boolean, volatile and non-volatile circuits.…”

Section: Spin Wave-based Logic Gates and Architecturesmentioning

confidence: 99%

“…Volatile magnonic circuits provide functional output (i.e. inductive voltage) as long as external power is applied to the spin wave generating elements [30] or spin wave buses are combined with an electric circuit preserving the output voltage produced by the spin wave pulses [59]. For example, magnonic circuits described in Ref.…”

Section: Spin Wave-based Logic Gates and Architecturesmentioning

confidence: 99%

“…The circuit operates as long as the input antennas generate continuous spin waves. It is also possible to build a circuit combining spin wave buses with a bi-stable electric circuit, where the switching of the electric circuit is accomplished by the inductive voltage pulse [59]. In this case, there no need in permanently spin wave generating elements, though external power is required to maintain the state of the electronic circuit.…”

Section: Spin Wave-based Logic Gates and Architecturesmentioning

confidence: 99%

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Magnonic Logic Devices

Khitun¹,

Kozhanov²

2017

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Хитун Александр Георгиевич, кандидат физико-математических наук, профессор факульте-та электроники и компьютерной техники, Университет Калифорнии, Риверсайд, akhitun@ ece.ucr.edu Кожанов Александр Евгеньевич, кандидат физико-математических наук, доцент факультета физики и астрономии, Университет штата Джорджия, Атланта, akozhanov@gsu.edu Делается обзор работ по исследованиям и разработкам физико-технологической плат-формы создания устройств магнонной логики. Рассматриваются физические принципы построения устройств спиновой логики, методы управления фазой и эффекты интерфе-ренции спиновых волн при распространении в магнитных микроструктурах. Обсужда-ются результаты микромагнитного моделирования и экспериментальных исследований эффектов распространения спиновых волн в микроволноводах на основе ферромагнит-ных металлов и пленок ферритов гранатов. Рассматриваются методы возбуждения и приема спиновых волн в магнитных волноведущих структурах. Определенное внимание уделяется архитектуре и подходам к построению логических устройств на основе интер-ференционных эффектов. Для мультиферроидных структур приводятся оценки энерго-эффективности переключения устройств магнонной логики между состояниями логи-ческий «0» и «1». Показана возможность построения основных логических элементов и функций на принципах магнонной логики. Проводится сравнение магнонных логических устройств с устройствами по стандартной КМОП-технологии. Обсуждаются возможные области применения устройств магнонной логики. Ключевые слова: магноника, спиновые волны, тонкие магнитные пленки, мульти-ферроики, стрейнтроника, магнонные сети и волноведущие структуры, интерференция спиновых волн, управление фазой спиновых волн, магнонная голографическая память. Background and Objectives:There is a big impetus for the development of novel computational devices able to overcome the limits of the traditional transistor-based circuits. The utilization of phase in addition to amplitude is one of the promising approaches towards more functional computing architectures. In this work, we present an overview on magnonic logic devices utilizing spin waves for information transfer and processing. Materials and Methods: Magnonic logic devices combine input/output elements for spin wave generation/detection and 217 Твердотельная электроника, микро-и наноэлектроника A. Khitun, A. Kozhanov. Magnonic Logic Devices an analog core. The core consists of magnetic waveguides serving as a spin wave buses. The data transmission and processing within the analog part is accomplished by the spin waves, where logic 0 and 1 are encoded into the phase of the propagating wave. The latter makes it possible to utilize spin wave interference for logic functionality. The proof-of-concept experiments were accomplished on micrometer scale ferromagnetic Ni 81 Fe 19 and ferrite Y 3 Fe 2 (FeO 4 ) 3 structures. Results: We present experimental data on spin wave propagation and interference in magnetic microstructures. We also present experimental data showing parallel read-out of magnetic bits using spin...

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“…The experimental data on frequency conversion in 100nm ferromagnetic film can be found in Ref. [34].…”

Section: Possible Architecturesmentioning

confidence: 99%

Spin Wave Magnetic NanoFabric: A New Approach to Spin-Based Logic Circuitry

2008

Self Cite

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We propose and describe a magnetic NanoFabric which provides a route to building reconfigurable spin-based logic circuits compatible with conventional electron-based devices. A distinctive feature of the proposed NanoFabric is that a bit of information is encoded into the phase of the spin wave signal. It makes possible to transmit information without the use of electric current and utilize wave interference for useful logic functionality. The basic elements include voltage-to-spin wave and wave-to-voltage converters, spin waveguides, a modulator, and a magnetoelectric cell. As an example of a magnetoelectric cell, we consider a two-phase piezoelectric-piezomagnetic system, where the spin wave signal modulation is due to the stress-induced anisotropy caused by the applied electric field. The performance of the basic elements is illustrated by experimental data and results of numerical modeling. The combination of the basic elements let us construct magnetic circuits for NOT and Majority logic gates. Logic gates AND, OR, NAND and NOR are shown to be constructed as the combination of NOT and a reconfigurable Majority gates. The examples of computational architectures such as Cellular Automata, Cellular Nonlinear Network and Field Programmable Gate Array are described. The main advantage of the proposed NanoFabric is in the ability to realize 2 logic gates with less number of devices than it required for CMOS-based circuits.Potentially, the area of the elementary reconfigurable Majority gate can be scaled down to 0.1µm 2 . The disadvantages and limitations of the proposed NanoFabric are discussed.3

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Inductively Coupled Circuits with Spin Wave Bus for Information Processing

Cited by 33 publications

References 9 publications

Two-wave mixing in nonlinear magnetization dynamics: A perturbation expansion of the Landau-Lifshitz-Gilbert equation

Two-wave mixing in nonlinear magnetization dynamics: A perturbation expansion of the Landau-Lifshitz-Gilbert equation

Magnonic Logic Devices

Spin Wave Magnetic NanoFabric: A New Approach to Spin-Based Logic Circuitry

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